Iain Duncan Smith: The rise and fall of the former work and pensions secretary

As David Cameron attempts to hold his party together after Iain Duncan Smith's explosive resignation, IBTimes UK guides you through the ups and downs of the former work and pensions secretary's career. From military man to Tory leader, the Edinburgh born MP has been near the top of Conservative Party for years. But will the Eurosceptic's latest move be the Tories' final undoing?